MV Pentalina-B was a fast and extremely versatile ferry operated on a variety of Scottish routes. Launched in 1970 as MV Iona, she was the first drive-through roll-on/roll-off ferry built for the David MacBrayne Ltd fleet. She was the first ship in the company's history to have bridge-controlled engines and geared transmission, rather than direct drive. She enjoyed a far-flung career and inaugurated more endloading linkspans than the rest of the fleet put together. Purchased by Pentland Ferries in 1997, she was renamed MV Pentalina-B and operated across the Pentland Firth until the arrival of their new vessel. In 2009, she was sold to a Cape Verde owner.